diff --git a/geovoronoi/_voronoi.py b/geovoronoi/_voronoi.py
index 2839bad..83ea26e 100644
--- a/geovoronoi/_voronoi.py
+++ b/geovoronoi/_voronoi.py
@@ -10,7 +10,12 @@
 from collections import defaultdict
 
 import numpy as np
-from scipy.spatial import Voronoi, QhullError
+
+try:
+    from scipy.spatial import Voronoi, QhullError
+except ImportError:
+    from scipy.spatial.qhull import QhullError    # for older versions of scipy
+
 from shapely.geometry import box, LineString, Point, MultiPoint, Polygon, MultiPolygon
 from shapely.errors import TopologicalError
 from shapely.ops import unary_union